56317660 has 36 divisors (see below), whose sum is σ = 137578392. Its totient is φ = 19308576.

The previous prime is 56317649. The next prime is 56317673. The reversal of 56317660 is 6671365.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27754 + ... + 29713.

It is an arithmetic number, because the mean of its divisors is an integer number (3821622).

Almost surely, 2^56317660 is an apocalyptic number.

It is an amenable number.

56317660 is an abundant number, since it is smaller than the sum of its proper divisors (81260732).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56317660 is a wasteful number, since it uses less digits than its factorization.

56317660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57490 (or 57481 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 56317660 is about 7504.5093110742. The cubic root of 56317660 is about 383.3082798161.

The spelling of 56317660 in words is "fifty-six million, three hundred seventeen thousand, six hundred sixty".